Retire obsolete behavior canvas scroll and tool paths

crates/oa-desktop/src/behavior/contextual_source_tests.rs

@@ -886,7 +886,7 @@ fn contextual_source_incomplete_recovered_kind_reports_error_without_panicking()
 }
 
 #[test]
-fn contextual_source_old_empty_action_cannot_open_a_previous_owner_or_layer() {
+fn contextual_source_empty_palette_lifeline_cannot_open_a_previous_owner_or_layer() {
     use crate::app::{App, Message, Page};
     let (mut p, a) = scenario_project(Layer::Oa, ScenarioViewpoint::OperationalActivity);
     let b = p
@@ -898,30 +898,32 @@ fn contextual_source_old_empty_action_cannot_open_a_previous_owner_or_layer() {
     app.behavior.active_owner = Some(a);
     app.selected = a;
     let context = app.scenario_context().unwrap();
+    let source = app.document.bundle().clone();
+    let begin = |context| scenario::CanvasEvent::BeginOccurrence {
+        context,
+        tool: scenario::Tool::Lifeline,
+        slot: scenario::Slot {
+            parent: a,
+            before: None,
+        },
+        lifeline: None,
+    };
     app.behavior.active_owner = Some(b);
     app.selected = b;
-    let _ = app.update(Message::ScenarioCanvas(scenario::CanvasEvent::First(
-        context,
-        scenario::Tool::Lifeline,
-    )));
+    let _ = app.update(Message::ScenarioCanvas(begin(context)));
     assert!(!app.behavior.has_pending());
     assert_eq!(app.project(), &p);
     app.behavior.active_owner = Some(a);
     app.selected = a;
     app.layer = Layer::Sa;
-    let _ = app.update(Message::ScenarioCanvas(scenario::CanvasEvent::First(
-        context,
-        scenario::Tool::Lifeline,
-    )));
+    let _ = app.update(Message::ScenarioCanvas(begin(context)));
     assert!(!app.behavior.has_pending());
     app.layer = Layer::Oa;
     let current = app.scenario_context().unwrap();
-    let _ = app.update(Message::ScenarioCanvas(scenario::CanvasEvent::First(
-        current,
-        scenario::Tool::Lifeline,
-    )));
+    let _ = app.update(Message::ScenarioCanvas(begin(current)));
     assert_eq!(app.behavior.pending_owner(), Some(a));
     assert_eq!(app.project(), &p);
+    assert_eq!(app.document.bundle(), &source);
     assert!(!app.document.can_undo());
 }